The error message is very clear, there is no file E:\Program Files\MATLAB\R2016a\bin\EegMyDataDir 1\with occular artifact\cnt
If you intended for that file to exist, then you need to find out why it doesn't. It's nothing to do with matlab.
On the other hand, you should never use any directory in Program Files to store your data. That's a sure way of corrupting your software installation. So I'd recommend you use another directory such as My Documents\Matlab to store you files.
Also, since you don't appear to be very experience with matlab, I would strongly recommend not using warning off all.